<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      var arr = [{label:'男',value: 1}, {label:'女',value: 0}]

      function f(arr) {
        // 写代码，得到
        const obj = {}
        arr.forEach(item => {
          // Object.values(item)得到一个数组['男', 1]  ['女', 0]
          obj[`'${item.value}'`] = item.label
        })
        return obj
      }
      var obj = f(arr);
      console.log(obj)
      // obj2 = {'1': '男'， '0': '女'}
    </script>
  </body>
</html>
